بند 78- حروف اضافه زمان و تاریخ
الف- حرف اضافه مربوط به زمان
At a time: e.g. at six o’clock, at noon, at midnight.
On a day: e.g. on Monday, on July 21st, on Christmas Day.
In a period: e.g. in August, in 1914, in summer, in the morning, in the afternoon.
At Christmas/ at Easter (the period generally, not the day only)
On the morning/afternoon/evening of a certain date:
The battle started on the morning of the 24th.
ب- حروف اضافه به همراه عبارت های زمانی به عنوان اصطلاح:
On time = at the time arranged.
In time = not late.
The 10 a.m. train started on time (= at 10 a.m.).
We were in time for the train (= we arrived before 10 a.m.).
اصطلاح in time، میتواند به معنای in the end/ eventually نیز باشد:
You’ll get used to it in time.
ج- اصطلاحات زمانی:
At 6 a.m., at noon &c. = at that time precisely
By 6 a.m., by noon &c. = at that time or before it, usually before it:
Tom: I’ll be finished at six (= I’ll be working up to that time).
Ann: I’ll be finished by six (= almost certainly before six; so Ann will be finished before Tom).
د- اصطلاح زمانی ترکیبی:
At the beginning (of) = literally at the beginning
At the end (of) = literally at the end:
At the beginning of the book = in the first few pages/ on the first page
At the end of the book = in the last few pages/ on the last page
In the beginning/ at first (of is not normally used) = in the early stages, and implies a change later on:
In the beginning/ At first we used knives; later we used axes.
In the end/ at last = eventually/ after some time:
At first he opposed the marriage but in the end he gave his consent.